Sleeping with a dry cough and itchy throat can be seen in excessive use of the voice, smoking and drinking, allergic factors, reflux pharyngitis, acute pharyngitis and so on. 1. If the throat is stimulated by tobacco and alcohol for a long time, or if you use your voice excessively, you can trigger chronic pharyngitis, which reduces the secretion of the throat at night, leading to itchy throat, dry throat, cough and other symptoms. 2. Allergic factors: allergy, sleep environment contact with pollen, dust, dust mites and other allergens can lead to pharyngeal mucosal metamorphosis, inflammatory mediators exudate, resulting in inflammatory reaction, such symptoms. 3. Reflux pharyngitis: the reflux of stomach acid into the throat can cause irritation, leading to throat irritation symptoms during sleep. 4. Acute pharyngitis: mostly caused by viral and bacterial infections, such as Coxsackie virus, adenovirus, streptococcus, etc. High temperature, dust and other physical and chemical factors can also lead to such symptoms. It is recommended that patients seek medical treatment in time to identify the causes, and actively cooperate with doctors in treating the disease to avoid aggravation of the condition.